allow spread props on elements with tests for static attributes

src/utils/getStaticAttributeValue.ts

@@ -2,7 +2,7 @@ import { Node } from '../interfaces';
 
 export default function getStaticAttributeValue(node: Node, name: string) {
 	const attribute = node.attributes.find(
-		(attr: Node) => attr.name.toLowerCase() === name
+		(attr: Node) => attr.type === 'Attribute' && attr.name.toLowerCase() === name
 	);
 
 	if (!attribute) return null;

test/runtime/samples/spread-element-input/_config.js

@@ -0,0 +1,9 @@
+export default {
+	data: {
+		props: {
+			'data-foo': 'bar'
+		}
+	},
+
+	html: `<input data-foo="bar">`
+};

test/runtime/samples/spread-element-input/main.html

@@ -0,0 +1 @@
+<input bind:value {...props}>